20239670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:461

約数の個数: 48

約数和(自身を含む): 41081040

約数和(自身を除く): 20841370

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 121, 215, 242, 389, 430, 473, 605, 778, 946, 1210, 1945, 2365, 3890, 4279, 4730, 5203, 8558, 10406, 16727, 21395, 26015, 33454, 42790, 47069, 52030, 83635, 94138, 167270, 183997, 235345, 367994, 470690, 919985, 1839970, 2023967, 4047934, 10119835, 20239670]

約数ペア:

[(1, 20239670), (2, 10119835), (5, 4047934), (10, 2023967), (11, 1839970), (22, 919985), (43, 470690), (55, 367994), (86, 235345), (110, 183997), (121, 167270), (215, 94138), (242, 83635), (389, 52030), (430, 47069), (473, 42790), (605, 33454), (778, 26015), (946, 21395), (1210, 16727), (1945, 10406), (2365, 8558), (3890, 5203), (4279, 4730)]